A novel design of frequency encoded multiplexer and demultiplexer systems using reflected semiconductor optical amplifier with simulative verification

In this modern era, optical technology is used for high-speed processing because photon carries information instead of an electron. In signal processing, multiplexing and demultiplexing are the most valuable component. In this communication, designs of frequency encoded 2:1 multiplexer and 1:2 demultiplexer with the use of Reflective Semiconductor Optical Amplifier and add/drop multiplexer are devised. These proposed designs work at high-speed due to the high speed switching property of reflective semiconductor optical amplifier. In the multiplexing and demultiplexing system, coded data signals and coded control signals are the most important issues. Here, frequency encoding is opted because frequency is unaltered after reflection, refraction, absorption, etc., and it gives a very good response for long-distance transmission of processed data. The operation of devised designs has also been verified through MATLAB Simulink (R2018a) software.